Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933122AbdGSXin (ORCPT ); Wed, 19 Jul 2017 19:38:43 -0400 Received: from lelnx194.ext.ti.com ([198.47.27.80]:39371 "EHLO lelnx194.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932341AbdGSXhc (ORCPT ); Wed, 19 Jul 2017 19:37:32 -0400 From: Franklin S Cooper Jr To: , , , , , , , , , CC: Franklin S Cooper Jr Subject: [PATCH 0/4] can: Add new binding to limit bit rate used Date: Wed, 19 Jul 2017 18:36:50 -0500 Message-ID: <20170719233654.25908-1-fcooper@ti.com> X-Mailer: git-send-email 2.10.0 MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1411 Lines: 32 Add a new generic binding that CAN drivers can use to specify the max arbitration and data bit rate supported by a transceiver. This is useful since in some instances the maximum speeds may be limited by the transceiver used. However, transceivers may not provide a means to determine this limitation at runtime. Therefore, create a new binding that mimics "fixed-link" that allows a user to hardcode the max speeds that can be used. Also add support for this new binding in the MCAN driver. Note this is an optional subnode so even if a driver adds support for parsing fixed-transceiver the user does not have to define it in their device tree. Franklin S Cooper Jr (4): can: dev: Add support for limiting configured bitrate can: fixed-transceiver: Add documentation for CAN fixed transceiver bindings can: m_can: Update documentation to mention new fixed transceiver binding can: m_can: Add call to of_transceiver_is_fixed .../bindings/net/can/fixed-transceiver.txt | 31 ++++++++++++++ .../devicetree/bindings/net/can/m_can.txt | 10 +++++ drivers/net/can/dev.c | 48 ++++++++++++++++++++++ drivers/net/can/m_can/m_can.c | 2 + include/linux/can/dev.h | 5 +++ 5 files changed, 96 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/can/fixed-transceiver.txt -- 2.10.0